Na2[Sn(OH)6] + 2e− → 2Na+ + Sn2+ + 6OH−
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- Reduction of sodium hexahydroxidostannate(IV)
- Na2[Sn(OH)6]Sodium hexahydroxidostannate(IV) + 2e−Electron2Na+Sodium ion + Sn2+Tin(II) ion + 6OH−Hydroxide ion⟶
Reduction of sodium hexahydroxidostannate(IV) yields sodium ion, tin(II) ion, and hydroxide ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reduction of sodium hexahydroxidostannate(IV)
- Na2[Sn(OH)6]Sodium hexahydroxidostannate(IV) + 2e−Electron2Na+Sodium ion + Sn2+Tin(II) ion + 6OH−Hydroxide ion⟶
General equation
- Reduction of reducible species
- ReactantOxidizing agent + e− ⟶ ProductReduction product
Oxidation state of each atom
- Reduction of sodium hexahydroxidostannate(IV)
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Na2[Sn(OH)6] | Sodium hexahydroxidostannate(IV) | 1 | Oxidizing | – |
| e− | Electron | 2 | – | Electron |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Na+ | Sodium ion | 2 | – | – |
| Sn2+ | Tin(II) ion | 1 | Reduced | – |
| OH− | Hydroxide ion | 6 | – | – |
Thermodynamic changes
Thermodynamic data of reactants
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| Na2[Sn(OH)6] | – | – | – | – |
| e− | – | – | – | – |
Thermodynamic data of products
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| Na+ (g) | 609.358[1] | – | – | – |
| Na+ (ao) | -240.12[1] | -261.905[1] | 59.0[1] | 46.4[1] |
| Sn2+ (g) | 2434.80[1] | – | – | – |
| OH− (g) | -143.5[1] | – | – | – |
| OH− (ao) | -229.994[1] | -157.244[1] | -10.75[1] | -148.5[1] |
* (g):Gas, (ao):Un-ionized aqueous solution
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)